2026-03-01 19:41:28 (M4.9) South Sandwich Islands region -56.0 -28.0 (90be5)

M4.9 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 1 Mar 2026 19:41:29 Time near the Epicenter (1): 1 Mar 2026 17:41:29 Time in your area (1): 1 Mar 2026 11:41:29
Location	55.993S 28.047W
Depth	124 km
Distances	2412.5 km (1495.8 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2518.3 km (1561.3 mi) ENE of Ushuaia, Argentina 2521.6 km (1563.4 mi) E of Río Grande, Argentina 2713.4 km (1682.3 mi) E of Río Gallegos, Argentina 2722.8 km (1688.1 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 11.4 km; Vertical 6.2 km
Parameters	Nph = 45; Dmin = 571.2 km; Rmss = 0.68 seconds; Gp = 67° Version =
Event ID	us 7000s1af

(1) Nominal Standard Time; local and daylight savings time zone may differ.
For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
National Earthquake Information Center
U.S. Geological Survey


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